SAG Awards 2015: Best and worst of the red carpet

BEST: Reese Witherspoon’s simple, one-shouldered white Giorgio Armani gown made for a modern, confident look. And the ponytail, with a strand of her own blond hair wrapped around it, was the perfect accompaniment.   (Top left: Ethan Miller / Getty Images; Bottom left, center and right, Frazer Harrison / Getty Images)

Best: Another white light was Maggie Gyllenhaal in a slinky crepe gown with a sheer bodice panel by Thakoon Panichgul.   (Ethan Miller / Getty Images)

Knightley attended the 2015 SAG Awards in a plum-colored gown by fellow Brit Erdem Moraliglu.  (Frazer Harrison / Getty Images)

Best: If you were looking for unusual, Emma Stone wore a Dior design that was one part tuxedo dress, one part sheer ball skirt, and altogether sassy and different.  (Bottom left, Kevork Djansezian / Getty Images; Top left, center and right, Ethan Miller / Getty Images)

The “Homeland” star donned an army-green Marc Jacobs gown for the 21st Annual Screen Actors Guild Awards on Jan. 25, 2015.  (Ethan Miller / Getty Images)

Best: Stripes are always a joyful choice for the red carpet when it’s nice and warm. Pictured with date Tom Cullen, Tatiana Maslany’s flounced Oscar de la Renta gown with allover stripes recalled beach umbrellas in St. Tropez.   (Frazer Harrison / Getty Images)

Best: Lupita Nyong’o was thinking along the same lines; she wore a cheery stripe and watercolor floral long-sleeve Elie Saab gown.   (Ethan Miller / Getty Images)

Watts wore this navy Balenciaga gown to the 2015 SAG Awards, where she was nominated for her role in “St. Vincent.”  (Ethan Miller / Getty Images )

Best: Sarah Paulson in another no-fail Armani, with a cape-effect bodice. The sleek hair and David Webb earrings complete the no-fuss look.  (Ethan Miller / Getty Images)

The “Still Alice” Oscar nominee chose this green Givenchy gown at the 2015 SAG Awards.  (Top left, center, right, Ethan Miller / Getty Images; bottom left, Kevork Djansezian / Getty Images)

The “Cake” star shined in a vintage gold gown by John Galliano at the 2015 SAW Awards.  (Left, center, top right, Ethan Miller / Getty Images; Bottom right, Alberto E. Rodriguez)

Worst: Julia Louis-Dreyfus’ long, black Monique Lhuillier gown was a departure from her typically more modern silhouettes. The black hue and long lace sleeves looked out-of-character, even dowdy.   (Frazer Harrison / Getty Images)

Worst: Julianna Margulies, who usually scores on the red carpet, missed with a blue Giambattista Valli gown. The hue didn’t suit her, and the copious drapes and folds were too much.  (Kevork Djansezian / Getty Images)

Worst: Lorelai Linklater looked like she was auditioning for the role of Morticia Addams in this black velvet Honor gown with bell sleeves. Why so serious? It’s January in L.A., not New York.  (Frazer Harrison / Getty Images)

Worst: Emilia Clarke’s black and navy Donna Karan gown with bands wrapping the shoulders, and a train, looked more “Downton Abbey” than “Game of Thrones.” Why so serious?  (Frazer Harrison / Getty Images)

The “Theory of Everything” star wore a pink off-the-shoulder Balenciaga column gown at the 2015 SAG Awards.

Worst: Andrea Riseborough’s bridal party-looking Escada gown proves why mint green is never a good idea.  (Ethan Miller / Getty Images)